Rose plant named ‘ESM R073’

ABSTRACT

A new and distinct cultivar of Rose plant named ‘ESM R073’, characterized by its upright and strong flowering stems; vigorous growth habit and high productivity; freely flowering habit; orange-colored flowers that are typically grown as spray types; excellent postproduction longevity; and resistance to  Botrytis.

Botanical designation: Rosa hybrida.

Cultivar denomination: ‘ESM R073’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Applicant: Aloysius A. J. Hooijman

Title: Rose Plant Named ‘ESM R071’

Filed: Sep. 9, 2015

Application Number: U.S. Plant patent application Ser. No. 13/987,858

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Roseplant, botanically known as Rosa hybrida, commercially used as a cutflower Rose plant, typically referred to as a floribunda type, andhereinafter referred to by the name ‘ESM R073’.

The new Rose plant is a product of a planned breeding program conductedby the Inventor in El Quinche, Pichincha, Ecuador. The objective of thebreeding program was to develop new cut flower Rose varieties withattractive flowers and excellent postproduction longevity.

The new Rose plant originated from a cross-pollination made by theInventor in July, 2007 of a proprietary Rose selection identified asLine 369, not patented, as the female, or seed, parent with aproprietary Rose selection identified as Line 222, not patented, as themale, or pollen, parent. The new Rose plant was discovered and selectedby the Inventor as a single flowering plant within the progeny of thestated cross-pollination in a controlled greenhouse environment in ElQuinche, Pichincha, Ecuador in March, 2009.

Asexual reproduction of the new Rose plant by bud grafting in ElQuinche, Pichincha, Ecuador since October, 2009 has shown that theunique features of this new Rose plant are stable and reproduced true totype in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

Plants of the new Rose have not been observed under all possibleenvironmental conditions and cultural practices. The phenotype may varysomewhat with variations in environmental conditions such as temperatureand light intensity, without however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘ESM R073’. These characteristics incombination distinguish ‘ESM R073’ as a new and distinct Rose plant:

-   -   1. Upright and strong flowering stems.    -   2. Vigorous growth habit and high productivity.    -   3. Freely flowering habit.    -   4. Orange-colored flowers that are typically grown as spray        types.    -   5. Excellent postproduction longevity.    -   6. Resistant to Botrytis.

Plants of the new Rose differ from plants of the female parent selectionin the following characteristics:

-   -   1. Plants of the new Rose are taller than plants of female        parent selection.    -   2. Stems of plants of the new Rose have slightly more thorns        than stems of plants of the female parent selection.    -   3. Plants of the new Rose and the female parent selection differ        in flower color as plants of the female parent selection have        light red-colored flowers.

Plants of the new Rose differ from plants of the male parent selectionin the following characteristics:

-   -   1. Plants of the new Rose are slightly shorter than plants of        the male parent selection.    -   2. Plants of the new Rose are more vigorous than plants of the        male parent selection.    -   3. Stems of plants of the new Rose have slightly more thorns        than stems of plants of the male parent selection.    -   4. Flowers of plants of the new Rose have more petals than        flowers of plants of the male parent selection.    -   5. Flower buds and flowers of plants of the new Rose are larger        than flower buds and flowers of plants of the male parent        selection.

Plants of the new Rose can be compared to plants of Rose ‘Babe’, notpatented. In side-by-side comparisons conducted in El Quinche,Pichincha, Ecuador, plants of the new Rose differed from plants of‘Babe’ in the following characteristics:

-   -   1. Plants of the new Rose were shorter and broader than plants        of ‘Babe’.    -   2. Plants of the new Rose were more vigorous than plants of        ‘Babe’.    -   3. Plants of the new Rose had stronger stems than plants of        ‘Babe’.    -   4. Stems of plants of the new Rose had more thorns than stems of        plants of ‘Babe’.    -   5. Plants of the new Rose had taller and broader flower sprays        than plants of ‘Babe’ with more flowers per spray.    -   6. Plants of the new Rose flower about 13 days later than plants        of ‘Babe’.    -   7. Plants of the new Rose had larger flower buds and flowers        than plants of ‘Babe’.    -   8. Flowers of plants of the new Rose had more petals than        flowers of plants of ‘Babe’.

Plants of the new Rose can also be compared to plants of Rosa hybrida‘ESM R071’, disclosed in U.S. Plant patent application Ser. No.13/987,858, primarily in flower color as plants of ‘ESM R071’ have darkyellow-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearanceof the new Rose plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. Colors in thephotographs may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Rose plant.

The photograph at the upper left of the sheet comprises a sideperspective view of typical flowering stem of ‘ESM R073’.

The photograph at the upper right of the sheet is a close-up view of atypical flowering stem of ‘ESM R073’.

The photograph at the lower left of the sheet is a close-up view of atypical flower of ‘ESM R073’.

The photograph at the lower right of the sheet are close-up views of theupper and lower surfaces of typical leaves of ‘ESM R073’.

DETAILED BOTANICAL DESCRIPTION

Plants of the new Rose have not been observed under all possibleenvironmental conditions and cultural practices. The phenotype may varysomewhat with variations in environmental conditions such as temperatureand light intensity, without, however, any variance in genotype. Theaforementioned photographs, following observations and measurementsdescribe plants grown in beds in a polyethylene-covered greenhouse in ElQuinche, Pichincha, Ecuador and under typical hydroponic Rose productionpractices. Plants were pinched 13 to 14 weeks after planting and were 79weeks old when the description and photographs were taken. During theproduction of the plants, day temperatures ranged from 16° C. to 30° C.,night temperatures ranged from 12° C. to 16° C. and light levels rangedfrom 800 to 1,200 foot-candles. In the following description, colorreferences are made to The Royal Horticultural Society Colour Chart,2001 Edition, except where general terms of ordinary dictionarysignificance are used.

-   Botanical classification: Rosa hybrida ‘ESM R073’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary seedling selection of            Rosa hybrida identified Line 369, not patented.        -   Male, or pollen, parent.—Proprietary seedling selection of            Rosa hybrida identified Line 222, not patented.-   Propagation:    -   -   Type.—By bud grafting.        -   Time to initiate roots.—About seven to ten days at 26° C. to            30° C.        -   Time to produce a rooted young plant.—About four to five            weeks at 22° C. to 26° C.        -   Root description.—Fibrous, medium to thick; close to N199B            in color.        -   Rooting habit.—Moderately freely branching; medium density.-   Plant description:    -   -   Plant and growth habit.—Perennial shrub; upright and strong            flowering stems; typically grown as a spray-type cut flower;            vigorous growth habit.        -   Branching habit.—Freely basal branching habit; highly            productive with about 8.4 flowering stems developing per            plant per year.        -   Plant height.—About 127 cm.        -   Plant width (spread).—About 68 cm.        -   Lateral branches.—Quantity: About 17 lateral branches            develop per plant. Length: About 84 cm. Diameter: About            7 mm. Internode length: About 4.6 cm. Texture: Smooth,            glabrous; older stems, woody. Color: Close to 146A. Thorns:            Density: Medium. Shape: Triangular with sharp acuminate            apices; slightly incurved and flat. Height: About 7 mm.            Length, at base: About 8 mm. Color, immature: Close to 172A            and 161A. Color, mature: Close to between 164C and 178A.-   Leaf description:    -   -   Arrangement.—Alternate; compound with typically five to            seven leaflets per leaf.        -   Leaf length.—About 17.9 cm.        -   Leaf width.—About 10.6 cm.        -   Terminal leaflet length.—About 5.8 cm.        -   Terminal leaflet width.—About 4.5 cm.        -   Lateral leaflet length.—About 5 cm.        -   Lateral leaflet width.—About 4.1 cm.        -   Leaflet shape.—Ovate.        -   Leaflet apex.—Acute.        -   Leaflet base.—Attenuate.        -   Leaflet margin.—Serrate.        -   Leaflet texture, upper and lower surfaces.—Smooth, glabrous;            coriaceous.        -   Leaflet venation pattern.—Pinnate.        -   Leaflet color.—Developing leaflets, upper surface: Close to            139A; towards the margins, close to 187A. Developing            leaflets, lower surface: Close to 147B. Fully expanded            leaflets, upper surface: Close to 147A; venation, close to            152B. Fully expanded leaflets, lower surface: Close to 147B;            venation, close to 146C.        -   Petioles, leaves.—Length: About 1.8 cm. Diameter: About            2 mm. Texture, upper surface: Prickly. Texture, lower            surface: Smooth, glabrous. Color, upper and lower surfaces:            Close to 146A to 146D.        -   Petioles, leaflets.—Length: About 2.6 cm. Diameter: About            1.3 mm. Texture, upper surface: Prickly. Texture, lower            surface: Smooth, glabrous. Color, upper surface: Close to            146A. Color, lower surface: Close to 146A to 146C.        -   Stipules.—Arrangement and appearance: Two, adnate to the            petiole, leafy in appearance. Length: About 2.4 cm. Width:            About 2.1 mm. Shape: Roughly deltoid. Apex: Acuminate,            tapered. Base: Tapered. Margin: Serrate. Texture, upper and            lower surfaces: Irregularly pubescent; membranous. Venation            pattern: Pinnate. Color, upper surface: Close to 137A.            Color, lower surface: Close to 146A.-   Flower description:    -   -   Flower type and flowering habit.—Symmetrical rosette            flowers; flowers typically grown as spray types; flowers            face upright.        -   Flowering season.—Plants of the new Rose flower year-round            under greenhouse conditions; early flowering habit, plants            begin flowering about 83 days after pinching; in the garden,            optimal flowering from spring through autumn; flowering            intermittent.        -   Spray height.—About 26 cm.        -   Spray diameter.—About 20 cm.        -   Quantity of flowers per spray.—About seven.        -   Flower diameter.—About 7.5 cm.        -   Flower depth (height).—About 3 cm.        -   Flower longevity on plant.—About 33 days; flowers            persistent.        -   Flower longevity as a cut flower.—Excellent postproduction            longevity, flowers last about ten to twelve days.        -   Fragrance.—Slightly fragrant, pleasant.        -   Flower buds.—Shape: Ovoid. Length: About 2.9 cm. Diameter:            About 2.3 cm. Color: Close to 144A and 146A.        -   Petals.—Quantity: About 35 to 40 per flower; petals            imbricate. Length: About 3.1 cm. Width: About 3.2 cm. Shape:            Nearly round; transversely ovate. Apex: Blunt to shortly            acute. Base: Obtuse. Margin: Entire. Texture, upper and            lower surfaces: Smooth, glabrous; papery to coriaceous.            Color: When opening, upper surface: Close to N30A; towards            the base, close to 14A. When opening, lower surface: Close            to N30C; towards the base, close to 14A. Fully opened, upper            surface: Close to N30C; towards the base, close to 14A.            Fully opened, lower surface: Close to N25A; towards the            base, close to 13A.        -   Petaloids.—Quantity: About seven; petaloids whorled. Length:            Variable. Width: Variable. Shape: Irregularly shaped. Apex:            Blunt to shortly acute. Base: Obtuse. Margin: Entire or            uneven. Texture, upper and lower surfaces: Smooth, glabrous;            papery to coriaceous. Color: When opening and fully opened,            upper surface: Close to N30A; towards the base, close to            13A. When opening and fully opened, lower surface: Close to            32A; towards the base, close to 14A.        -   Sepals.—Quantity per flower: Typically five in a single            whorl. Length: About 3 cm. Width: About 1 cm. Shape: Roughly            deltoid. Apex: Tapered. Base: Truncate. Margin: Entire;            glandular. Texture, upper surface: Pubescent; leathery.            Texture, lower surface: Glandular; along the margins,            irregularly pubescent; leathery. Color: When opening, upper            surface: Close to 146B to 146D. When opening, lower surface:            Central spot, close to 175A; towards the margins, close to            144A and 146A; towards the base, close to 144B. Fully            opened, upper surface: Close to 145B and 146B. Fully opened,            lower surface: Close to 144B and 146B.        -   Pedicels.—Length: About 3.1 cm. Diameter: About 3.2 mm.            Strength: Strong. Aspect: About 34° from vertical. Texture:            Glandular. Color: Close to 146A and N199D.        -   Reproductive organs.—Stamens: Quantity: About 100 per            flower. Anther length: About 2.5 mm. Anther shape: Reniform.            Anther color: Close to 162A and N163D. Filament color: Close            to 160C and 46B. Pollen amount: Abundant. Pollen color:            Close to 163A.        -   Pistils.—Quantity: About 109 per flower. Pistil length:            About 1.2 cm. Stigma shape: Broadly reniform. Stigma color:            Close to 153B. Style length: About 8.4 mm. Style color:            Close to 17A. Receptacle height: About 8 mm. Receptacle            diameter: About 9 mm. Receptacle shape: Cup-shaped.            Receptacle texture: Smooth, glabrous. Receptacle color:            Close to 144A.        -   Fruits.—Length: About 1.8 cm. Diameter: About 2 cm. Texture:            Smooth. Color: Close to N172A.        -   Seeds.—Quantity per fruit: About six. Length: About 6 mm.            Diameter: About 5 mm. Texture: Smooth. Color: Close to 160B.-   Pathogen & pest tolerance/resistance: Plants of the new Rose have    been observed to resistant to Botrytis. Plants of the new Rose have    not been observed to be resistant or tolerant to pests and other    pathogens.-   Temperature tolerance: Plants of the new Rose have been observed to    tolerate temperatures ranging from 0° C. to 35° C.

It is claimed:
 1. A new and distinct Rose plant named ‘ESM R073’ as illustrated and described. 